Malicious PDF — malware analysis report

Static analysis result for SHA-256 805e74b615ea64a9…

MALICIOUS

PDF

34.9 KB Created: 2020-09-19 10:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c48b8963556c0e6b723d48a1dea4acc SHA-1: 8ec236198f5306777f451ffedafcea3874afbc51 SHA-256: 805e74b615ea64a94105ff2edd2f44df6fbf176659a403bd4d61175233f75b49
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.club'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify, likely for SEO manipulation. The document body, though heavily obfuscated, contains the same malicious URL and benign-looking PDF titles, reinforcing the lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.club/wix?keyword=gather+together+in+my+name+pdf+download
    • http://files.cedartreeholistics.ca/uploads/1/3/1/0/131069832/836967.pdf
    • http://files.supervisedvisitations.net/uploads/1/3/2/6/132682640/zegerefafapesito.pdf
    • http://xiwejubu.katharinawoicke.com/uploads/1/3/0/7/130740597/resiwitopadane.pdf
    • http://funetoja.stevebtowers.com/uploads/1/3/1/4/131406656/binedojuso_pijifite_ludiri_vejixer.pdf
    • https://cdn.shopify.com/s/files/1/0436/6244/2661/files/bitumen_emulsion_ss1_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/4839/3112/files/cardiomiopatia_hipertrofica_felina.pdf
    • https://cdn.shopify.com/s/files/1/0434/6914/4230/files/21027600675.pdf
    • https://cdn.shopify.com/s/files/1/0430/4535/5682/files/90321616057.pdf
    • https://cdn.shopify.com/s/files/1/0459/9663/8365/files/fda_anesthesia_machine_checklist.pdf
    • https://cdn.shopify.com/s/files/1/0429/2021/4694/files/xafemoxewovolipeziri.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/forovakaxetezuvixabo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3595/9202/files/21936506102.pdf
    • https://cdn.shopify.com/s/files/1/0433/3584/3994/files/danuke.pdf
    • https://cdn.shopify.com/s/files/1/0430/7222/5442/files/filoba.pdf
    • https://cdn.shopify.com/s/files/1/0435/8212/8291/files/nobujawijeludoroveponex.pdf
    • https://cdn.shopify.com/s/files/1/0430/0544/4259/files/81351075502.pdf
    • https://cdn.shopify.com/s/files/1/0437/9131/9201/files/9723863729.pdf
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/64521792500.pdf
    • https://cdn.shopify.com/s/files/1/0441/4462/3768/files/26084025655.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a64.bin
01cfe1d12b13412bb46e6424dbd3296ed543a7dcf36a864fde6f37b00e76e823		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A64 5500 bytes
font_01_sfnt_off00005d0f.bin
c39b55842e9521153cbdd1498607ffb0b0d38c3756c9e1c757e59525c803f7ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0F 9940 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.